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SHAMROCK MARATHON 2026

Grant Johnson

Bib: 947•M•Age: 29

Olney, MD

0:00
0:00
/ mi
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Overall
#0 / 2429
Top 14%
Gender (Male)
#0 / 1480
Top 19%
Division (M25-29)
#0 / 297
Top 21%
Race Day Weather
55°/45°F
few clouds

⏱️ Race Timeline

Course Elevation
-8–55 ft
≈
×5story building
•▲ 331 ft climb · ▼ 310 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:58/mi
24:46
↑ 26↓ 31
10K· 6.21 mi
7:57/mi
49:29
↑ 38↓ 170.1%
15K· 9.32 mi
7:59/mi
1:14:18
↑ 26↓ 440.1%
20K· 12.43 mi
7:55/mi
1:38:53
↑ 35↓ 22
Half· 13.10 mi
8:00/mi
1:44:15
↓ 130.2%
30K· 18.64 mi
7:47/mi
2:27:21
↑ 86↓ 72
35K· 21.75 mi
9:17/mi
2:56:12
↑ 39↓ 39
25.2M
9:08/mi
3:27:42
↑ 57↓ 58
Finish· 26.22 mi
8:23/mi
3:36:15
↑ 17↓ 12

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.10 mi
Time1:44:15
Pace7:58 /mi
2nd Half
Distance13.12 mi
Time1:52:00
Pace8:32 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:57:0424:467:5824:46
7:58
-
10K
6.21 mi08:21:4749:297:5824:43
7:57
-0:01
15K
9.32 mi08:46:361:14:187:5824:49
7:59
+0:02
20K
12.43 mi09:11:111:38:537:5724:35
7:55
-0:04
Half
13.10 mi09:16:331:44:157:585:22
8:00
+0:05
30K
18.64 mi09:59:392:27:217:5443:06
7:47
-0:13
35K
21.75 mi10:28:302:56:128:0628:51
9:17
+1:30
25.2M
25.20 mi11:00:003:27:428:1531:30
9:08
-0:09
Finish
26.22 mi11:08:333:36:158:158:33
8:23
-0:45

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:47 /mi

Average Pace

8:15 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:54

72% of race

Time at Steady Pace

31:30

15% of race

Time at Slower Pace

28:51

13% of race

Average Pace: 8:15 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi07:57:0424:467:5824:46
7:58
#484
10K
6.21 mi08:21:4749:297:5824:43
7:57
#473
15K
9.32 mi08:46:361:14:187:5824:49
7:59
#464
20K
12.43 mi09:11:111:38:537:5724:35
7:55
#447
Half
13.10 mi09:16:331:44:157:585:22
8:00
#442
30K
18.64 mi09:59:392:27:217:5443:06
7:47
#382
35K
21.75 mi10:28:302:56:128:0628:51
9:17
#370
25.2M
25.20 mi11:00:003:27:428:1531:30
9:08
#342
Finish
26.22 mi11:08:333:36:158:158:33
8:23
#339
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
5K3.11 mi3.11 mi48440489487(Top 20%)404(Top 27%)88(Top 30%)
10K6.21 mi3.10 mi473+11393+1189460(Top 19%)384(Top 26%)84(Top 28%)
15K9.32 mi3.11 mi464+9385+886+3487(Top 20%)404(Top 27%)88(Top 30%)
20K12.43 mi3.11 mi447+17371+1483+3404(Top 17%)346(Top 23%)75(Top 25%)
Half13.10 mi0.67 mi442+5370+183427(Top 18%)364(Top 25%)78(Top 26%)
30K18.64 mi5.54 mi382+60323+4773+10321(Top 13%)276(Top 19%)64(Top 22%)
35K21.75 mi3.11 mi370+12311+1268+5377(Top 16%)304(Top 21%)67(Top 23%)
25.2M25.20 mi3.45 mi342+28285+2661+7388(Top 16%)294(Top 20%)63(Top 21%)
Finish26.22 mi1.02 mi339+3281+461386(Top 16%)287(Top 19%)66(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×1story
+26ft-31ft

Overall

487

Males

404

M25-29

94

5K→10K

3.1 - 6.2 mi

Top 19%
×2story building
+38ft-17ft

Overall

460

Males

384

M25-29

91

10K→15K

6.2 - 9.3 mi

Top 20%
×2story building
+26ft-44ft

Overall

487

Males

404

M25-29

94

15K→20K

9.3 - 12.4 mi

Top 17%
×1story
+35ft-22ft

Overall

404

Males

346

M25-29

81

20K→Half

12.4 - 13.1 mi

Top 18%
×1human
+7ft-13ft

Overall

427

Males

364

M25-29

83

Half→30K

13.1 - 18.6 mi

Top 13%
×2story building
+86ft-72ft

Overall

321

Males

276

M25-29

69

30K→35K

18.6 - 21.8 mi

Top 16%
×2stacked humans
+39ft-39ft

Overall

377

Males

304

M25-29

73

35K→25.2M

21.8 - 25.2 mi

Top 16%
×3story building
+57ft-58ft

Overall

388

Males

294

M25-29

67

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×1human
+17ft-12ft

Overall

386

Males

287

M25-29

68

Passing Analysis

Category:
Athletes Passed
215*
Passed By
70
Net Change
+145
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#484
5K → 10K2514+11#484#473
10K → 15K2011+9#473#464
15K → 20K22*5+17#464#447
20K → Half9*4+5#447#442
Half → 30K71*11+60#442#382
30K → 35K22*10+12#382#370
35K → 25.2M38*10+28#370#342
25.2M → Finish8*5+3#342#339
TOTALS215*70+145

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

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J & A Racing

Big River Race Management

Big River Race Management